3143455321 has 2 divisors, whose sum is σ = 3143455322. Its totient is φ = 3143455320.

The previous prime is 3143455313. The next prime is 3143455331. The reversal of 3143455321 is 1235543413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3111408400 + 32046921 = 55780^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 3143455321 - 2³ = 3143455313 is a prime.

It is a super-2 number, since 2×3143455321² = 19762622710246426082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3143455331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571727660 + 1571727661.

It is an arithmetic number, because the mean of its divisors is an integer number (1571727661).

Almost surely, 2^3143455321 is an apocalyptic number.

It is an amenable number.

3143455321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3143455321 is an equidigital number, since it uses as much as digits as its factorization.

3143455321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 3143455321 is about 56066.5258509924. The cubic root of 3143455321 is about 1464.8812852120.

Adding to 3143455321 its reverse (1235543413), we get a palindrome (4378998734).

The spelling of 3143455321 in words is "three billion, one hundred forty-three million, four hundred fifty-five thousand, three hundred twenty-one".